Liquid-dispensing apparatus



F. G. FAHR. LIQUID DISPENSING APPARATUS. APFfLlcATloN FILED JULY 19. |919.

. 19385.7@80 Pam .my 5, 19211.,

narran stares rara'arorrica aannemen e. rana, or nnrnorr, mutamenti, assrenon ro arnnnunrc err.' srs'rnius oonronarron, or nn'raorr, manteau, a conroaarron or MGHIGAN.

'LQUm-DISJEEENSING. APPARATUS.

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\ Application ed July 19,

T all whom t may concern:

Be lit known that l, FREDERICK G. FARB, a citizen of the United States of America, residin at Detroit, in the county of Wayne and tate of Michigan, have invented cerf.

, tain new fand useful Improvements in l'liquid-Dispensing Apparatus, of which the following is a specication, reference being had therein to the accompanying drawings.

rlhe invention relates to liquid dispensing apparatus such vas used in the retailing of gasolene and hydrocarbon fuels, and the inventionl consists in certain features of conurement of the liquid and will record the same, but the customer may not be satisfied as to' the accuracy. lt is, therefore, one of the objects of the present invention to prov vide a check on the accuracy of the meter and one giving satisfactory visual evidence. lt is a further object to obtain this -result without complication of the apparatus or interference with the normal operation of the regular meter.

ln detail, A is a suitable standard sup# porting a housing B containing a meter C ofrany suitable construction, but, as shown, having a dial indicator D visible at the front of the housing. E is the delivery conduit from the meter, whichis connected to the flexible hose F through which the liquid may be discharged into. the tank. Gr is a `valve in the inlet conduit to the meter and H is a valve in the outlet conduit E.

As a check upon the accuracy of the meter I have arranged adjacent to the housing B a transparent measuring receptacle l. This lis connected to the conduit E by a branch conduit J which is controlled by a valve K. Thus, by closing the valvel-l and opening the valve K the liquid `which is passed Specication of Letters Patent.

Patented .muy 5, raar.

1era. serial ne. straat.

ment by a Iglance, after which by opening the valve` the liquid will How by gravity from the receptacle ll into the hose F.

To hold the liquid from backward nfnovei' ment through the meter vwhen the pressure is released, the valve G is closed and when this is done the liquid may be retained in the receptacle l for any length of time. The

upper end of the receptacle I must be vent# ed, butA to avoid the possibility of escape of the liquid through this vent a float valve M or other equivalent device is used for sealing the vent when the receptacle is full.

Toguard against injury by expansion of' the li uid when the receptacle I is full, a -bypass is provided connecting the conduits and the inlet conduit below the valve G. The by-pass N has a check valve 0 therein which closes against upward movement `of the liquid but will automatically open by downward pressure. rlhe size of this bypass is relatively small and, if desired, the check valve may be held to its seat by spring tension suilicient to balance the head of liquid in the tank, but which will yield upon an excess pressure.

The receptacle l is preferably formed of a glass cylinder with heads l) and P at opposite ends thereof connectedK by the tie rods Q.. To secure accuracy in measurement, it is desirable to provide an adjustment device for the original setting, and for this purpose the head P has a threaded engagenient on the conduit J permittinof raising or lowering the same. R and are lock nuts above and below the head engaging the threaded conduit J, and S, are gaskets for forming a liquid tight seal. This construction permits of raising or lowering the receptacle l relative to the upper -end of the conduit J, and as the liquid Hows out through this `conduit by gravity the level of the upper end will determine the quantity discharged. It may be necessary` however, to trap a small amount of the liquid in the re ceptacle below the upper end of the conduit J, as indicated. A petcock T is arranged on the head P to drain oil' this trapped liquid at any time U is a luminous globe arranged between the receptacle I 4and the housing B for furnishing light to observe both the meter dial and the calibrated receptacle.

Whenever it is desired to dispense with the checking measurement the valve K is closed, which permits the direct delivery of the liquid from the meter into the conduit F. rll`he trapping of any of the delivered liquid in the conduit F is prevented by the air vent at the upper end ot the receptacle ll;

lln Fig. 2 a modied construction is shown in which the receptacle ll is connected to the meter C by a conduit d' entering the top of said receptacle, while a conduit F/ tor delivery connects with the bottom of the receptacle. This' arrangement shows to the purchaser that the fuel which is measured in the receptacle cannot be returned to the source, but must pass into the delivery conuit.

ln Fig. 3 a. series of receptacles l2, lts and llt' are connected to a common suppl conduit J2 4which leads from the meter ,'this arrangement permitting the measuring and delivering the fuel at dierent points, while the meter is a check on the total quantity Oso delivered.,

ln Fig. t is an arrangement similar to Fig.v 3 showing the receptacles l2, ll, etc., above the level of themeter instead of below the same' and also showing one receptacle l5 below the level of the meter and controlled by valves H and H2 which are connected through mechanism lla to operate reversely in .opening and closing.

What ll claim as my invention is:

1. ln a liquid dispensing apparatus, the combination with a meter and a delivery conduit, of a -measuring receptacle, a branched connection between the meter and said measuring receptacle and delivery conduit respectively, and a. valve in eac-h branch of said connection.

2. ln a liquid dispensingv apparatus, the combination with a meter, of a delivery conduit, a measuring receptacle, a branched connection between the meter and the measuring receptacle and delivery conduit respectively,

Ajustment for accuracy.

a valve in each branch, and a valve controlled inlet to the meter.

3. lln -a liquid dispensing apparatus, the

combination with a met/er, a discharge conduit, a measuring receptacle above said meter, a branched conduit leading from. said meter to said receptacle and to said discharge conduit,the` end of the branch leading to said receptacle extending upward therein, and means tor adjusting the height of said upward extension relative to said measuring receptacle..

4f. ln a liquid dispensing apparatus, the combination with a meter and a discharge conduit, of a measuring receptacle above said meter having an airvent at its upper end, valve-controlled connections between said meter' and said measuring receptacle and discharge conduit respectively, a valve for closing said vent when said receptacle is filled with liquid, and a by-pass around said meter having a check valve therein preventing outward flow of liquid but relieving pressure in said receptacle.

5. lln a liquid dispensing apparatus, the

combination with a standard, of ahousingv receptacle for the metered liquid, connec' tions for alternatively delivering the me# tered liquid \into said measuring receptacle., or ,directly to a discharge conduit, and means for trapping a variable quantity of the liquid in the measuring receptacle, forming an adlln testimony whereof ll ax my signature.

FRlEDlERlCK G., FARR. 

